Many thanks to @stark5.0 for this link. Heated and cooled seats are certainly possible and have been done with success

https://www.ford-trucks.com/forums/1...-wiring-3.html

Just takes someone more capable than myself

 

If you manage to get an arduino to work, I'll pay good money to get one.

 

Here are photos of the pinouts for the plugs for the climate control system - blowers, blend doors etc ... top is the Taurus, bottom is the Mustang.

The Mustang has an Air Inlet mode door actuator plug that I am not able to match up with on the Taurus.

 

So all plugs match up except for the ones I circled. I did notice that a couple pinouts are different.

 

Here is the pinout for the Mustang Air Inlet Mode Door Actuator. This is not on the Taurus, it seems.

 

So a couple of things from looking at these more closely:

- Connector 2066 on the Mustang has the pin 1 and 2 reversed from the Taurus
- Connector 2094 on the Mustang has pins 1 - 5 in a different order than the Taurus
- Connector 296 on the Mustang has the pins 1 and 2 reversed from the Taurus
- Connector 2091 on the Mustang has pins 1 - 5 in a different order than the Taurus
- Connector 2325 on the Mustang doesn't have a match on the Taurus.

I only changed one plug before. Not sure why I didn't notice the others.

 

If switching those pins around doesn't work, I think using the Taurus HVAC module along with the Mustang HVAC module may work. I will try tomorrow.

I think that according to the bottom diagram, I would disconnect pins 14 and 15 from the Mustang and plug them into the Taurus. I would also splice pins 1 and 17 on the Taurus to the Mustang for power and ground.

The only thing I wonder is does the Mustang HVAC send signals besides those for the seats on pins 14 and 15? And what issues will come up by disconnecting them and plugging into the Taurus?

 

Well, I tried the piggy back idea from the last post, and didn't work. Unless I had it wired up wrong. Cholmes, Stark 5.0 - any ideas? The last option I can try is to redo the pinouts for all the HVAC plugs.

 

Hi Jim. I don’t believe it is possible without an Arduino unit to send the needed signals to the Taurus unit via the dash buttons. I also don’t see how we will get the ventilation component without an aftermarket fan set up to receive the signal given the way the Taurus seats operate. Sadly, it is too much for me.

I plan to sell my Taurus HVAC unit and heat/cool dash buttons as soon as I can find reasonably priced heated seat blanks.

 

Oh boy, it's been a while. I've done all of Jim's oem upgrades to my car and loved every part of them....Thank you. Been following this one from the start and checked in from time to time. Had the climate control and hvac module in my ebay cart for a several years now. My issue was that my car did not come with heated seats. However, when I did the oem nav upgrade, I included everything for heated seats. I purchased aftermarket heating pads, but rewired them per oem by adding a couple of relays and tapping into the correct hvac module wires.

So here is my not so oem (but oem look) solution...could we still use the lower portion of the Taurus' climate control, but bypass the climate control module and use cooled seat button to power a relay for a set of aftermarket seat fans?

 

I like the idea, but am uncertain how such a simple system would work. The F150 group that pulled off the modification required something much more complicated.

That said, with your modding skills anything is possible

 

May give it a go. Will keep everyone updated.

 

Here's a question if anyone is still around. On our mustangs with heated seats, we push the driver's heated seat button and it sends a signal to a relay through the white w/blue stripe wire coming out of the HVAC module (see picture below). For the Taurus, what wire does the cooled seat button activate?

 

Is this project still active. I am wrapping up the s550 wheel and can take a look at this

 

Yes. I think there is still a lot of interest in this mod but progress has stalled. If someone can find a work around that would be amazing

 

Yes Master Jedi!

May The Force Be With You!

KC

 

So I went back a reread the threads. To be frank with you guys, there are going to be a few difficulties in my supporting the team.

jim is the only one who actually had all of the parts to make this work.
He hasn't been seen since July and therefore, any testing that comes about from me would be a moot point since there is no one to test it.

Roadblock 1 for my involvement:
I don't have a nav set-up. Based on what I gathered from the screenshots and my own experience, it would appear that the following is true.
The mustang has two options. Nav or non-Nav. The Non-nav cars have a single-piece circuit board which comes in multiple formats. With and without heated seats as an option. The other two spots are dedicated blanks.
I have attempted to modify a non-heated seat, non-nav circuit board to have all of the components of a heated-seat, non-nav circuit board to no avail. The signal goes through an IC (integrated chip) and this chip appears to process the signal into the canbus signal sent out of the 4-pin connector.
Unfortunately, because of this, I cannot even attempt to add or test cooled seats on my car given that I don't have any of the required parts for the nav setup (nor do I currently intend to pursue it. Personally, I think that technology all these years later have advanced to the point where this would be like installing a 1940s tube tv in my bathroom. I also like that have can have 10 preset stations while the nav only has 6).

So now, because I cannot test it, and jim is absent, any sort of solution that would require solving is potentially out the door.

My questions would have been:
1. When the Taurus HVAC module and the Taurus FCIM for the HVAC was installed, did the heated seats continue to work as intended? (I wish there was a way to mark certain posts as irrelevant, the back and forth of the incorrect circuit board, while enlightening, doesn't propel the project forward.)
2. If the blend doors are operating in a strange manner. Indeed that's... sort of fine, it just means that the HVAC module is printed differently and the wiring is different. There are two things that can be done.
I would be checking the voltage at the plugs at each of the door actuators for the motors. If they match, then it would be a matter of swapping the pins, NOT at the connectors of the blend doors, but the connector at the HVAC module: C294A


That would, theoretically, get the blend doors back in working order. Normally, you would have to have the Taurus wiring diagram for the plug coming out of the HVAC module (I didn't see if further up) but since the doors are not inoperable but switched, they are sort of already identified.

3. I would be using a multimeter on the Taurus HVAC pins that are supposed to send the signal to the climate-controlled seats. This is because I'm assuming you guys don't have a harness or the actual motors under the seat to test. If you do, that's ever better.

Because you are swapping both the FCIM and the HVAC module the canbus signal should be relatively contained. The worst I could see happening is that the hvac signal in the taurus happens to be the same signal as the ACM signal in the mustang, but that would be bonkers for them to do.


Unfortunately, unless someone has a complete working setup and is present to do some testing, I fear this project may have indefinitely stalled.